impulse oscilloscope

例句：

1. 1. He felt an intense urge to run after the ball.
   他感到强烈的冲动去追那个球。
2. 2. The sudden impulse made him forget everything else.
   突然的冲动让他忘记了一切。
3. 3. Her impulsive decision led to a series of unfortunate events.
   她的冲动决定导致了一连串不幸的事件。